some dramatic, new video from a security camera near the scene of that car crash that killed actor paul walker and a friend. the tv show "omg insider" posted the video online. you can see the smoke on the right-hand side as the porsche crashed into a tree. it rapidly goes up in flames. nbc news has learned the car was traveling 40 to 45 miles per hour and that drag racing was not involved. hundreds of mourners have been visiting the crash site to pay their respects, including co-star vin diesel late last night. >> all of you have showed up to show my brother love at this hard time, and the family gets to see all of you show the love that you've shown paul. it's going to stay with me forever. i just wanted to say thank you, thank you for coming down here and showing that angel up in heaven how much you appreciated him. >> nbc news has also obtained this photo of walker standing next to the porsche that he was in when he died, taken just moments before the accident. >>> new data is debunking the myth that you can be both overweight and healthy at the same time. according to a team of cana